World Resorts USA Stonington Weather

Stonington 7 Days Forecast

26.08
wed
Day
73°F
NE 8 mph
Precip.
9%
Night
70°F
NE 9 mph
Precip.
21%
27.08
thu
Day
75°F
N 11 mph
Precip.
13%
Night
72°F
NW 10 mph
Precip.
18%
28.08
fri
Day
75°F
NE 7 mph
Precip.
9%
Night
72°F
SE 12 mph
Precip.
21%
29.08
sat
Day
72°F
NE 3 mph
Precip.
15%
Night
68°F
E 6 mph
Precip.
19%
30.08
sun
Day
73°F
NE 8 mph
Precip.
9%
Night
73°F
NE 17 mph
Precip.
13%
31.08
mon
Day
75°F
E 15 mph
Precip.
22%
Night
73°F
E 5 mph
Precip.
27%
01.09
tue
Day
72°F
NW 11 mph
Precip.
26%
Night
72°F
NE 12 mph
Precip.
48%

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 70.5°F. The highest and lowest sea temperatures during the month were 74.5°F and 68.5°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 68.2°F. The highest and lowest sea temperatures during the month were 70.9°F and 66.9°F.

Air temperature in Stonington, °F

Precipitation total in Stonington, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Stonington

Sunniest months:
November 16 days
September 14 days
October 14 days
Warmest months:
July 79.9 °F
August 78.1 °F
June 74.0 °F
Warmest sea temp:
August 70.1 °F
July 68.5 °F
September 68.2 °F
Coldest months:
January 36.2 °F
February 37.3 °F
December 41.1 °F
Rainiest months:
October 4 days
July 3 days
November 3 days
Windiest months:
January 10.5 mph
December 10.3 mph
March 10.0 mph

Stonington on a weather map

Stonington
+64°F
SE 9 mph
Feels like: +64°F
Precip.: 10%
Places in USA:
Name
°F
+64°F
+68°F
+79°F
+90°F
+72°F
+79°F
+63°F
+77°F
+66°F
+70°F
+59°F
+70°F
+77°F
+82°F
+70°F
24 Hours Forecast
Stonington
Local time: 01:52
August 26, wednesday
0300
64°F
SE
9 mph
0600
61°F
SE
9 mph
0900
68°F
SE
7 mph
1200
73°F
NE
8 mph
1500
72°F
NE
15 mph
1800
73°F
NE
15 mph
2100
70°F
NE
14 mph
August 27, thursday
0000
70°F
NE
9 mph
Units of measurement: °C / °F